2013-09-26  Florian Weimer  <fw@deneb.enyo.de>

	* tree-ssa.h (walk_use_def_chains_fn, walk_use_def_chains): Delete.
	* tree-ssa.c (walk_use_def_chains_1, walk_use_def_chains): Delete.
	* doc/tree-ssa.texi (Walking use-def chains): Delete.


git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@202951 138bc75d-0d04-0410-961f-82ee72b054a4